svn commit: r299316 - in head/sys: conf dev/siba

Adrian Chadd adrian at FreeBSD.org
Tue May 10 05:05:25 UTC 2016


Author: adrian
Date: Tue May 10 05:05:23 2016
New Revision: 299316
URL: https://svnweb.freebsd.org/changeset/base/299316

Log:
  [siba] migrate siba.c to siba_mips.c
  
  Turns out that ye olde siba.c is /just/ the siba mips code (used by
  the initial SENTRY5 port.  However, I don't think it was ever
  finished enough to be useful, and I do have this nagging feeling
  that we'll eventually replace it with the bhnd code.
  
  But, since bhnd(4) introduced siba.c too, we ended up with a
  source file name clash, and that broke the SENTRY5 build.
  
  It /looks/ like this is the only place siba.c / device siba is
  used.

Added:
  head/sys/dev/siba/siba_mips.c
     - copied unchanged from r299313, head/sys/dev/siba/siba.c
Deleted:
  head/sys/dev/siba/siba.c
Modified:
  head/sys/conf/files

Modified: head/sys/conf/files
==============================================================================
--- head/sys/conf/files	Tue May 10 04:59:04 2016	(r299315)
+++ head/sys/conf/files	Tue May 10 05:05:23 2016	(r299316)
@@ -2440,10 +2440,10 @@ dev/si/si3_t225.c		optional si
 dev/si/si_eisa.c		optional si eisa
 dev/si/si_isa.c			optional si isa
 dev/si/si_pci.c			optional si pci
-dev/siba/siba.c			optional siba !bhnd !bhndbus
 dev/siba/siba_bwn.c		optional siba_bwn pci
 dev/siba/siba_cc.c		optional siba !bhnd !bhndbus
 dev/siba/siba_core.c		optional siba | siba_bwn pci
+dev/siba/siba_mips.c		optional siba !bhnd !bhndbus
 dev/siba/siba_pcib.c		optional siba pci !bhnd !bhndbus
 dev/siis/siis.c			optional siis pci
 dev/sis/if_sis.c		optional sis pci

Copied: head/sys/dev/siba/siba_mips.c (from r299313, head/sys/dev/siba/siba.c)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/sys/dev/siba/siba_mips.c	Tue May 10 05:05:23 2016	(r299316, copy of r299313, head/sys/dev/siba/siba.c)
@@ -0,0 +1,642 @@
+/*-
+ * Copyright (c) 2007 Bruce M. Simpson.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/rman.h>
+#include <sys/malloc.h>
+
+#include <machine/bus.h>
+
+#include <dev/siba/siba_ids.h>
+#include <dev/siba/sibareg.h>
+#include <dev/siba/sibavar.h>
+
+/*
+ * TODO: De-mipsify this code.
+ * TODO: cpu clock calculation. -> move to siba_cc instance
+ * TODO: Hardwire IRQs for attached cores on siba at probe time.
+ * TODO: Support detach.
+ * TODO: Power management.
+ * TODO: code cleanup.
+ * TODO: Support deployments of siba other than as a system bus.
+ */
+
+#ifndef MIPS_MEM_RID
+#define MIPS_MEM_RID 0x20
+#endif
+
+extern int rman_debug;
+
+static struct rman mem_rman; 	/* XXX move to softc */
+
+static int siba_debug = 1;
+static const char descfmt[] = "Sonics SiliconBackplane rev %s";
+#define SIBA_DEVDESCLEN sizeof(descfmt) + 8
+
+/*
+ * Device identifiers and descriptions.
+ */
+static struct siba_devid siba_devids[] = {
+	{ SIBA_VID_BROADCOM,	SIBA_DEVID_CHIPCOMMON,	SIBA_REV_ANY,
+	  "ChipCommon" },
+	{ SIBA_VID_BROADCOM,	SIBA_DEVID_SDRAM,	SIBA_REV_ANY,
+	  "SDRAM controller" },
+	{ SIBA_VID_BROADCOM,	SIBA_DEVID_PCI,		SIBA_REV_ANY,
+	  "PCI host interface" },
+	{ SIBA_VID_BROADCOM,	SIBA_DEVID_MIPS,	SIBA_REV_ANY,
+	  "MIPS core" },
+	{ SIBA_VID_BROADCOM,	SIBA_DEVID_ETHERNET,	SIBA_REV_ANY,
+	  "Ethernet core" },
+	{ SIBA_VID_BROADCOM,	SIBA_DEVID_USB11_HOSTDEV, SIBA_REV_ANY,
+	  "USB host controller" },
+	{ SIBA_VID_BROADCOM,	SIBA_DEVID_IPSEC,	SIBA_REV_ANY,
+	  "IPSEC accelerator" },
+	{ SIBA_VID_BROADCOM,	SIBA_DEVID_SDRAMDDR,	SIBA_REV_ANY,
+	  "SDRAM/DDR controller" },
+	{ SIBA_VID_BROADCOM,	SIBA_DEVID_MIPS_3302,	SIBA_REV_ANY,
+	  "MIPS 3302 core" },
+	{ 0, 0, 0, NULL }
+};
+
+static int	siba_activate_resource(device_t, device_t, int, int,
+		    struct resource *);
+static device_t	siba_add_child(device_t, u_int, const char *, int);
+static struct resource *
+		siba_alloc_resource(device_t, device_t, int, int *, rman_res_t,
+		    rman_res_t, rman_res_t, u_int);
+static int	siba_attach(device_t);
+#ifdef notyet
+static void	siba_destroy_devinfo(struct siba_devinfo *);
+#endif
+static struct siba_devid *
+		siba_dev_match(uint16_t, uint16_t, uint8_t);
+static struct resource_list *
+		siba_get_reslist(device_t, device_t);
+static uint8_t	siba_getirq(uint16_t);
+static int	siba_print_all_resources(device_t dev);
+static int	siba_print_child(device_t, device_t);
+static int	siba_probe(device_t);
+static void	siba_probe_nomatch(device_t, device_t);
+int		siba_read_ivar(device_t, device_t, int, uintptr_t *);
+static struct siba_devinfo *
+		siba_setup_devinfo(device_t, uint8_t);
+int		siba_write_ivar(device_t, device_t, int, uintptr_t);
+uint8_t		siba_getncores(device_t, uint16_t);
+
+/*
+ * On the Sentry5, the system bus IRQs are the same as the
+ * MIPS IRQs. Particular cores are hardwired to certain IRQ lines.
+ */
+static uint8_t
+siba_getirq(uint16_t devid)
+{
+	uint8_t irq;
+
+	switch (devid) {
+	case SIBA_DEVID_CHIPCOMMON:
+		irq = 0;
+		break;
+	case SIBA_DEVID_ETHERNET:
+		irq = 1;
+		break;
+	case SIBA_DEVID_IPSEC:
+		irq = 2;
+		break;
+	case SIBA_DEVID_USB11_HOSTDEV:
+		irq = 3;
+		break;
+	case SIBA_DEVID_PCI:
+		irq = 4;
+		break;
+#if 0
+	/*
+	 * 5 is reserved for the MIPS on-chip timer interrupt;
+	 * it is hard-wired by the tick driver.
+	 */
+	case SIBA_DEVID_MIPS:
+	case SIBA_DEVID_MIPS_3302:
+		irq = 5;
+		break;
+#endif
+	default:
+		irq = 0xFF;	/* this core does not need an irq */
+		break;
+	}
+
+	return (irq);
+}
+
+static int
+siba_probe(device_t dev)
+{
+	struct siba_softc *sc = device_get_softc(dev);
+	uint32_t idlo, idhi;
+	uint16_t ccid;
+	int rid;
+
+	sc->siba_dev = dev;
+
+	//rman_debug = 1;	/* XXX */
+
+	/*
+	 * Map the ChipCommon register set using the hints the kernel
+	 * was compiled with.
+	 */
+	rid = MIPS_MEM_RID;
+	sc->siba_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
+	    RF_ACTIVE);
+	if (sc->siba_mem_res == NULL) {
+		device_printf(dev, "unable to allocate probe aperture\n");
+		return (ENXIO);
+	}
+	sc->siba_mem_bt = rman_get_bustag(sc->siba_mem_res);
+	sc->siba_mem_bh = rman_get_bushandle(sc->siba_mem_res);
+	sc->siba_maddr = rman_get_start(sc->siba_mem_res);
+	sc->siba_msize = rman_get_size(sc->siba_mem_res);
+
+	if (siba_debug) {
+		device_printf(dev, "start %08x len %08x\n",
+		    sc->siba_maddr, sc->siba_msize);
+	}
+
+	idlo = siba_mips_read_4(sc, 0, SIBA_IDLOW);
+	idhi = siba_mips_read_4(sc, 0, SIBA_IDHIGH);
+	ccid = ((idhi & 0x8ff0) >> 4);
+	if (siba_debug) {
+		device_printf(dev, "idlo = %08x\n", idlo);
+		device_printf(dev, "idhi = %08x\n", idhi);
+		device_printf(dev, " chipcore id = %08x\n", ccid);
+	}
+
+	/*
+	 * For now, check that the first core is the ChipCommon core.
+	 */
+	if (ccid != SIBA_DEVID_CHIPCOMMON) {
+		if (siba_debug)
+			device_printf(dev, "first core is not ChipCommon\n");
+		return (ENXIO);
+	}
+
+	/*
+	 * Determine backplane revision and set description string.
+	 */
+	uint32_t rev;
+	char *revp;
+	char descbuf[SIBA_DEVDESCLEN];
+
+	rev = idlo & 0xF0000000;
+	revp = "unknown";
+	if (rev == 0x00000000)
+		revp = "2.2";
+	else if (rev == 0x10000000)
+		revp = "2.3";
+
+	(void)snprintf(descbuf, sizeof(descbuf), descfmt, revp);
+	device_set_desc_copy(dev, descbuf);
+
+	/*
+	 * Determine how many cores are present on this siba bus, so
+	 * that we may map them all.
+	 */
+	uint32_t ccidreg;
+	uint16_t cc_id;
+	uint16_t cc_rev;
+
+	ccidreg = siba_mips_read_4(sc, 0, SIBA_CC_CHIPID);
+	cc_id = (ccidreg & SIBA_CC_IDMASK);
+	cc_rev = (ccidreg & SIBA_CC_REVMASK) >> SIBA_CC_REVSHIFT;
+	if (siba_debug) {
+		device_printf(dev, "ccid = %08x, cc_id = %04x, cc_rev = %04x\n",
+		     ccidreg, cc_id, cc_rev);
+	}
+
+	sc->siba_ncores = siba_getncores(dev, cc_id);
+	if (siba_debug) {
+		device_printf(dev, "%d cores detected.\n", sc->siba_ncores);
+	}
+
+	/*
+	 * Now we know how many cores are on this siba, release the
+	 * mapping and allocate a new mapping spanning all cores on the bus.
+	 */
+	rid = MIPS_MEM_RID;
+	int result;
+	result = bus_release_resource(dev, SYS_RES_MEMORY, rid,
+	    sc->siba_mem_res);
+	if (result != 0) {
+		device_printf(dev, "error %d releasing resource\n", result);
+		return (ENXIO);
+	}
+
+	uint32_t total;
+	total = sc->siba_ncores * SIBA_CORE_LEN;
+
+	/* XXX Don't allocate the entire window until we
+	 * enumerate the bus. Once the bus has been enumerated,
+	 * and instance variables/children instantiated + populated,
+	 * release the resource so children may attach.
+	 */
+	sc->siba_mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
+	    sc->siba_maddr, sc->siba_maddr + total - 1, total, RF_ACTIVE);
+	if (sc->siba_mem_res == NULL) {
+		device_printf(dev, "unable to allocate entire aperture\n");
+		return (ENXIO);
+	}
+	sc->siba_mem_bt = rman_get_bustag(sc->siba_mem_res);
+	sc->siba_mem_bh = rman_get_bushandle(sc->siba_mem_res);
+	sc->siba_maddr = rman_get_start(sc->siba_mem_res);
+	sc->siba_msize = rman_get_size(sc->siba_mem_res);
+
+	if (siba_debug) {
+		device_printf(dev, "after remapping: start %08x len %08x\n",
+		    sc->siba_maddr, sc->siba_msize);
+	}
+	bus_set_resource(dev, SYS_RES_MEMORY, rid, sc->siba_maddr,
+	    sc->siba_msize);
+
+	/*
+	 * We need a manager for the space we claim on nexus to
+	 * satisfy requests from children.
+	 * We need to keep the source reservation we took because
+	 * otherwise it may be claimed elsewhere.
+	 * XXX move to softc
+	 */
+	mem_rman.rm_start = sc->siba_maddr;
+	mem_rman.rm_end = sc->siba_maddr + sc->siba_msize - 1;
+	mem_rman.rm_type = RMAN_ARRAY;
+	mem_rman.rm_descr = "SiBa I/O memory addresses";
+	if (rman_init(&mem_rman) != 0 ||
+	    rman_manage_region(&mem_rman, mem_rman.rm_start,
+		mem_rman.rm_end) != 0) {
+		panic("%s: mem_rman", __func__);
+	}
+
+	return (0);
+}
+
+static int
+siba_attach(device_t dev)
+{
+	struct siba_softc	*sc = device_get_softc(dev);
+	struct siba_devinfo	*sdi;
+	device_t		 child;
+	int			 idx;
+
+	if (siba_debug)
+		printf("%s: entry\n", __func__);
+
+	bus_generic_probe(dev);
+
+	/*
+	 * Now that all bus space is mapped and visible to the CPU,
+	 * enumerate its children.
+	 * NB: only one core may be mapped at any time if the siba bus
+	 * is the child of a PCI or PCMCIA bus.
+	 */
+	for (idx = 0; idx < sc->siba_ncores; idx++) {
+		sdi = siba_setup_devinfo(dev, idx);
+		child = device_add_child(dev, NULL, -1);
+		if (child == NULL)
+			panic("%s: device_add_child() failed\n", __func__);
+		device_set_ivars(child, sdi);
+	}
+
+	return (bus_generic_attach(dev));
+}
+
+static struct siba_devid *
+siba_dev_match(uint16_t vid, uint16_t devid, uint8_t rev)
+{
+	size_t			 i;
+	struct siba_devid	*sd;
+
+	sd = &siba_devids[0];
+	for (i = 0; i < nitems(siba_devids); i++, sd++) {
+		if (((vid == SIBA_VID_ANY) || (vid == sd->sd_vendor)) &&
+		    ((devid == SIBA_DEVID_ANY) || (devid == sd->sd_device)) &&
+		    ((rev == SIBA_REV_ANY) || (rev == sd->sd_rev) ||
+		     (sd->sd_rev == SIBA_REV_ANY)))
+			return(sd);
+	}
+
+	return (NULL);
+}
+
+static int
+siba_print_child(device_t bus, device_t child)
+{
+	int retval = 0;
+
+	retval += bus_print_child_header(bus, child);
+	retval += siba_print_all_resources(child);
+	if (device_get_flags(child))
+		retval += printf(" flags %#x", device_get_flags(child));
+	retval += printf(" on %s\n", device_get_nameunit(bus));
+
+	return (retval);
+}
+
+static struct resource *
+siba_alloc_resource(device_t bus, device_t child, int type, int *rid,
+    rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
+{
+	struct resource			*rv;
+	struct resource_list		*rl;
+	struct resource_list_entry	*rle;
+	int				 isdefault, needactivate;
+
+#if 0
+	if (siba_debug)
+		printf("%s: entry\n", __func__);
+#endif
+
+	isdefault = (RMAN_IS_DEFAULT_RANGE(start, end) && count == 1);
+	needactivate = flags & RF_ACTIVE;
+	rl = BUS_GET_RESOURCE_LIST(bus, child);
+	rle = NULL;
+
+	if (isdefault) {
+		rle = resource_list_find(rl, type, *rid);
+		if (rle == NULL)
+			return (NULL);
+		if (rle->res != NULL)
+			panic("%s: resource entry is busy", __func__);
+		start = rle->start;
+		end = rle->end;
+		count = rle->count;
+	}
+
+	/*
+	 * If the request is for a resource which we manage,
+	 * attempt to satisfy the allocation ourselves.
+	 */
+	if (type == SYS_RES_MEMORY &&
+	    start >= mem_rman.rm_start && end <= mem_rman.rm_end) {
+
+		rv = rman_reserve_resource(&mem_rman, start, end, count,
+		    flags, child);
+		if (rv == 0) {
+			printf("%s: could not reserve resource\n", __func__);
+			return (0);
+		}
+
+		rman_set_rid(rv, *rid);
+
+		if (needactivate) {
+			if (bus_activate_resource(child, type, *rid, rv)) {
+				printf("%s: could not activate resource\n",
+				    __func__);
+				rman_release_resource(rv);
+				return (0);
+			}
+		}
+
+		return (rv);
+	}
+
+	/*
+	 * Pass the request to the parent, usually MIPS nexus.
+	 */
+	if (siba_debug)
+		printf("%s: proxying request to parent\n", __func__);
+	return (resource_list_alloc(rl, bus, child, type, rid,
+	    start, end, count, flags));
+}
+
+/*
+ * The parent bus is responsible for resource activation; in the
+ * case of MIPS, this boils down to setting the virtual address and
+ * bus handle by mapping the physical address into KSEG1.
+ */
+static int
+siba_activate_resource(device_t bus, device_t child, int type, int rid,
+    struct resource *r)
+{
+
+	return (BUS_ACTIVATE_RESOURCE(device_get_parent(bus), child, type,
+	    rid, r));
+}
+
+static struct siba_devinfo *
+siba_setup_devinfo(device_t dev, uint8_t idx)
+{
+	struct siba_softc *sc = device_get_softc(dev);
+	struct siba_devinfo *sdi;
+	uint32_t idlo, idhi, rev;
+	uint16_t vendorid, devid;
+	bus_addr_t baseaddr;
+
+	sdi = malloc(sizeof(*sdi), M_DEVBUF, M_WAITOK | M_ZERO);
+	resource_list_init(&sdi->sdi_rl);
+
+	idlo = siba_mips_read_4(sc, idx, SIBA_IDLOW);
+	idhi = siba_mips_read_4(sc, idx, SIBA_IDHIGH);
+
+	vendorid = (idhi & SIBA_IDHIGH_VENDORMASK) >>
+	    SIBA_IDHIGH_VENDOR_SHIFT;
+	devid = ((idhi & 0x8ff0) >> 4);
+	rev = (idhi & SIBA_IDHIGH_REVLO);
+	rev |= (idhi & SIBA_IDHIGH_REVHI) >> SIBA_IDHIGH_REVHI_SHIFT;
+
+	sdi->sdi_vid = vendorid;
+	sdi->sdi_devid = devid;
+	sdi->sdi_rev = rev;
+	sdi->sdi_idx = idx;
+	sdi->sdi_irq = siba_getirq(devid);
+
+	/*
+	 * Determine memory window on bus and irq if one is needed.
+	 */
+	baseaddr = sc->siba_maddr + (idx * SIBA_CORE_LEN);
+	resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY,
+	    MIPS_MEM_RID, /* XXX */
+	    baseaddr, baseaddr + SIBA_CORE_LEN - 1, SIBA_CORE_LEN);
+
+	if (sdi->sdi_irq != 0xff) {
+		resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ,
+		    0, sdi->sdi_irq, sdi->sdi_irq, 1);
+	}
+
+	return (sdi);
+}
+
+#ifdef notyet
+static void
+siba_destroy_devinfo(struct siba_devinfo *sdi)
+{
+
+	resource_list_free(&sdi->sdi_rl);
+	free(sdi, M_DEVBUF);
+}
+#endif
+
+/* XXX is this needed? */
+static device_t
+siba_add_child(device_t dev, u_int order, const char *name, int unit)
+{
+#if 1
+
+	device_printf(dev, "%s: entry\n", __func__);
+	return (NULL);
+#else
+	device_t child;
+	struct siba_devinfo *sdi;
+
+	child = device_add_child_ordered(dev, order, name, unit);
+	if (child == NULL)
+		return (NULL);
+
+	sdi = malloc(sizeof(struct siba_devinfo), M_DEVBUF, M_NOWAIT|M_ZERO);
+	if (sdi == NULL)
+		return (NULL);
+
+	device_set_ivars(child, sdi);
+	return (child);
+#endif
+}
+
+int
+siba_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
+{
+	struct siba_devinfo *sdi;
+
+	sdi = device_get_ivars(child);
+
+	switch (which) {
+	case SIBA_IVAR_VENDOR:
+		*result = sdi->sdi_vid;
+		break;
+	case SIBA_IVAR_DEVICE:
+		*result = sdi->sdi_devid;
+		break;
+	case SIBA_IVAR_REVID:
+		*result = sdi->sdi_rev;
+		break;
+	case SIBA_IVAR_CORE_INDEX:
+		*result = sdi->sdi_idx;
+		break;
+	default:
+		return (ENOENT);
+	}
+
+	return (0);
+}
+
+int
+siba_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
+{
+
+	return (EINVAL);
+}
+
+static void
+siba_probe_nomatch(device_t dev, device_t child)
+{
+
+	/*
+	 * Announce devices which weren't attached after we probed the bus.
+	 */
+	if (siba_debug) {
+		struct siba_devid *sd;
+
+		sd = siba_dev_match(siba_get_vendor(child),
+		    siba_get_device(child), SIBA_REV_ANY);
+		if (sd != NULL && sd->sd_desc != NULL) {
+			device_printf(dev, "<%s> "
+			    "at device %d (no driver attached)\n",
+			    sd->sd_desc, siba_get_core_index(child));
+		} else {
+			device_printf(dev, "<0x%04x, 0x%04x> "
+			    "at device %d (no driver attached)\n",
+			    siba_get_vendor(child), siba_get_device(child),
+			    siba_get_core_index(child));
+		}
+	}
+}
+
+static int
+siba_print_all_resources(device_t dev)
+{
+	struct siba_devinfo *sdi = device_get_ivars(dev);
+	struct resource_list *rl = &sdi->sdi_rl;
+	int retval = 0;
+
+	if (STAILQ_FIRST(rl))
+		retval += printf(" at");
+
+	retval += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#jx");
+	retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%jd");
+
+	return (retval);
+}
+
+static struct resource_list *
+siba_get_reslist(device_t dev, device_t child)
+{
+	struct siba_devinfo *sdi = device_get_ivars(child);
+
+	return (&sdi->sdi_rl);
+}
+
+static device_method_t siba_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_attach,	siba_attach),
+	DEVMETHOD(device_detach,	bus_generic_detach),
+	DEVMETHOD(device_probe,		siba_probe),
+	DEVMETHOD(device_resume,	bus_generic_resume),
+	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
+	DEVMETHOD(device_suspend,	bus_generic_suspend),
+
+	/* Bus interface */
+	DEVMETHOD(bus_activate_resource,siba_activate_resource),
+	DEVMETHOD(bus_add_child,	siba_add_child),
+	DEVMETHOD(bus_alloc_resource,	siba_alloc_resource),
+	DEVMETHOD(bus_get_resource_list,siba_get_reslist),
+	DEVMETHOD(bus_print_child,	siba_print_child),
+	DEVMETHOD(bus_probe_nomatch,	siba_probe_nomatch),
+	DEVMETHOD(bus_read_ivar,	siba_read_ivar),
+	DEVMETHOD(bus_setup_intr,	bus_generic_setup_intr),
+	DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
+	DEVMETHOD(bus_write_ivar,	siba_write_ivar),
+
+	DEVMETHOD_END
+};
+
+static driver_t siba_driver = {
+	"siba",
+	siba_methods,
+	sizeof(struct siba_softc),
+};
+static devclass_t siba_devclass;
+
+DRIVER_MODULE(siba, nexus, siba_driver, siba_devclass, 0, 0);


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